... ,Eco-friendly Our products are made of stainless steel 201,304, which can work under about 600°c. Quick Details MaterialStrainless ... Steel 201, Strainless Steel 304-2bEdgeVolume & BarbedManufacturing processStampingDiameterφ340,φ350,φ400,φ370,φ410,φ420,φ430 ...